How does the mantle interact with the crust at a subduction zone? A Plates move apart to form deep cracks in the crust.
B Plates move towards each other to form mountains.
C A plate is pulled under another plate and melts into the mantle.
D Molten materials seep out when plates move away from each other.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.